Hello Everyone,

I'm new to the forum and look forward spending time here.

I am getting some strange results with the Hornady COAL tool & modified case.

When I move the pill forward, I am getting some resistance at about 3.630 COAL.
If I apply just a little more pressure, the pill moves forward and hits the lands hard at 3.760 COAL.

I ran the Tubb's final finish through at the range meticulous cleaning and many hours at the range hoping it might clean up, but I am observing the same thing.

Has anyone else seen this?

It seems that 3.630 is short and 3.760 is long.

The rifle shoots well with no pressure signs when ammo is rolled to the short measurement.

I get pressure signs and heavy bolt lift when rolled to the long side and the rifle shoots like crap.

I have heard that these rifles prefer a long jump.

Lapua brass. FL resized with shoulder pushed back about .002
Cases trimmed to 2.714
300g SMK's & Scenars
Win Large Rifle Magnum primers.

Using H1000, IMR4350, Retumbo & N560 with weights according to the books.

I'm just scratching my head here.

Thanks in advance for your responses.

I'm Happy to be a new member & hope to contribute.

Ole Silver